Phythesis: Physics-Guided Evolutionary Scene Synthesis for Energy-Efficient Data Center Design via LLMs

• URL: http://arxiv.org/abs/2512.10611v2
• Date: Mon, 15 Dec 2025 13:25:12 GMT
• Title: Phythesis: Physics-Guided Evolutionary Scene Synthesis for Energy-Efficient Data Center Design via LLMs
• Authors: Minghao LI, Ruihang Wang, Rui Tan, Yonggang Wen,
• Abstract summary: Data center infrastructure serves as the backbone to support the escalating demand for computing capacity.<n>Traditional design methodologies blend human expertise with specialized simulation tools.<n>Recent studies adopt generative artificial intelligence to design plausible human-centric indoor layouts.<n>We propose Phythesis, a novel framework that synergizes large language models (LLMs) and physics-guided evolutionary optimization.
• Score: 9.210347753567092
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Data center (DC) infrastructure serves as the backbone to support the escalating demand for computing capacity. Traditional design methodologies that blend human expertise with specialized simulation tools scale poorly with the increasing system complexity. Recent studies adopt generative artificial intelligence to design plausible human-centric indoor layouts. However, they do not consider the underlying physics, making them unsuitable for the DC design that sets quantifiable operational objectives and strict physical constraints. To bridge the gap, we propose Phythesis, a novel framework that synergizes large language models (LLMs) and physics-guided evolutionary optimization to automate simulation-ready (SimReady) scene synthesis for energy-efficient DC design. Phythesis employs an iterative bi-level optimization architecture, where (i) the LLM-driven optimization level generates physically plausible three-dimensional layouts and self-criticizes them to refine the scene topology, and (ii) the physics-informed optimization level identifies the optimal asset parameters and selects the best asset combination. Experiments on three generation scales show that Phythesis achieves 57.3% generation success rate increase and 11.5% power usage effectiveness (PUE) improvement, compared with the vanilla LLM-based solution.

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